Official NHA Assessment

Race 7: OPEN A TABGOLD ACCOUNT - 031 314 1874 PINNACLE STAKES (For Horses rated Nett 118 and below)

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Line Horse
Itsrainingwilliam
Reference for assessment
Exact Matches
2 / 9
Calculated = Official
Close Matches
3 / 9
Within 2 points
Significant Diffs
4 / 9
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    Dave The King        2    62.0    1    0.00     0.0   126   116          116   -10
2    The Shepherd         3    51.0    2    3.00     2.0   93    92           92    -1
3    Royal Victory        5    62.0    3    3.50     0.0   125   117          117   -8
4    Itsrainingwilliam    2    57.5    4    3.80     0.0   108   108          108   +0
5    Shoemaker            2    57.5    5    4.70     0.0   110   107          107   -3
6    Noble City           3    57.5    6    7.30     2.0   107   103          103   -4
7    Grinkov              2    56.0    7    10.50    0.0   102   104          104   +2
8    Perfection           3    57.5    8    21.10    2.0   106   103          103   -3
99   Sovereign State      3    55.5    99   0.00     2.0   -     99           99    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 Dave The King 126 128 116 +12 0.0 -
2 The Shepherd 93 97 92 +5 2.0 -
3 Royal Victory 125 124 117 +7 0.0 -
4 Itsrainingwilliam Line 108 108 108 ✓ Match 0.0
5 Shoemaker 110 109 107 +2 0.0 -
6 Noble City 107 93 103 -10 2.0 -
7 Grinkov 102 87 104 -17 0.0 -
8 Perfection 106 103 103 ✓ Match 2.0 -
99 Sovereign State - 96 99 -3 2.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points